<template>
   <div>
<!--     面包屑导航-->
       <el-breadcrumb separator-class="el-icon-arrow-right">
         <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
         <el-breadcrumb-item>用户管理</el-breadcrumb-item>
         <el-breadcrumb-item>用户列表</el-breadcrumb-item>
       </el-breadcrumb>
<!--     卡片视图-->
     <el-card>
<!--       搜索与添加区域-->
       <el-row :gutter="15">
         <el-col :span="10">
           <el-input placeholder="请输入内容" v-model="queryInfo.query"
                     clearable @clear="getUserList">
             <template #append>
               <el-button icon="el-icon-search" @click="getUserList"></el-button>
             </template>
           </el-input>
         </el-col>
         <el-col :span="4 ">
           <el-button type="primary" @click="dialogVisible = true">添加用户</el-button>
         </el-col>


       </el-row>

<!--       用户列表区域 -->
       <el-table :data="userlist" border stripe>
         <el-table-column type="index" label="❀"></el-table-column>
         <el-table-column label="姓名" prop="username"></el-table-column>
         <el-table-column label="邮箱" prop="email"></el-table-column>
         <el-table-column label="电话" prop="mobile"></el-table-column>
         <el-table-column label="角色" prop="role_name"></el-table-column>
         <el-table-column label="状态">
           <template v-slot="scope">
               <el-switch v-model="scope.row.mg_state" @change="userChange(scope.row)">
             </el-switch>
           </template>
         </el-table-column>
         <el-table-column label="操作" width="180px">
            <template v-slot="scope">
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
              <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting"
                           size="mini" @click="setRole(scope.row)"></el-button>
              </el-tooltip>
            </template>
         </el-table-column>
       </el-table>

<!--       分页区域-->
       <el-pagination
           @size-change="handleSizeChange"
           @current-change="handleCurrentChange"
           :current-page="queryInfo.pagenum"
           :page-sizes="[2, 5, 10, 15]"
           :page-size="queryInfo.pagesize"
           layout="total, sizes, prev, pager, next, jumper"
           :total="total">
       </el-pagination>
     </el-card>

<!--添加用户的对话框 -->
     <el-dialog
         title="添加用户"
         v-model="dialogVisible"
         @close="addDialogClosed"
         width="50%">
<!--       内容主体区-->
       <el-form :model="addForm" :rules="addFormRules"
       ref="addFormRef" label-width="70px">
         <el-form-item label="用户名" prop="username">
           <el-input v-model="addForm.username"></el-input>
         </el-form-item>
         <el-form-item label="密码" prop="password">
           <el-input v-model="addForm.password"></el-input>
         </el-form-item>
         <el-form-item label="邮箱" prop="email">
           <el-input v-model="addForm.email"></el-input>
         </el-form-item>
         <el-form-item label="手机号" prop="mobile">
           <el-input v-model="addForm.mobile"></el-input>
         </el-form-item>
       </el-form>
<!--       底部区域-->
       <template #footer>
    <span class="dialog-footer">
      <el-button @click="dialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="addUser">确 定</el-button>
    </span>
       </template>
     </el-dialog>

<!--     修改用户的对话框-->
     <el-dialog
         title="修改用户"
         v-model="editDialogVisible"
         @close="editDialogClosed"
         width="50%">
       <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" class="demo-ruleForm">
         <el-form-item label="用户名">
           <el-input v-model="editForm.username" disabled></el-input>
         </el-form-item>
         <el-form-item label="邮箱" prop="email">
           <el-input v-model="editForm.email"></el-input>
         </el-form-item>
         <el-form-item label="手机号" prop="mobile">
           <el-input v-model="editForm.mobile"></el-input>
         </el-form-item>
       </el-form>
       <template #footer>
    <span class="dialog-footer">
      <el-button @click="editDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="editUserInfo">确 定</el-button>
    </span>
       </template>
     </el-dialog>

<!--     分配角色的对话框-->
     <el-dialog
         title="分配角色"
         v-model="setRoleDialogVisible"
         width="50%" @close="setRoleDialogClosed">
       <div>
         <p>当前的用户：{{userInfo.username}}</p>
         <p>当前的角色：{{userInfo.role_name}}</p>
         <p>分配新角色：
           <el-select v-model="selectedRoleId" placeholder="请选择">
             <el-option
                 v-for="item in rolesList"
                 :key="item.id"
                 :label="item.roleName"
                 :value="item.id">
             </el-option>
           </el-select>

         </p>
       </div>
       <template #footer>
    <span class="dialog-footer">
      <el-button @click="setRoleDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
    </span>
       </template>
     </el-dialog>

   </div>
</template>

<script>
export default {
  name: "Users",
  data(){
    //验证邮箱的规则
    var checkEmail = (rule,value,cb)=>{
      const regEmail = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/;
      if (regEmail.test(value)){
        return cb()
      }
      cb(new Error('请输入合法的邮箱！'))
    }

    //验证手机号的规则
    var checkMobile = (rule,value,cb)=>{
      const regMobile=/^1[3456789]\d{9}$/;
      if (regMobile.test(value)){
        return cb()
      }
      cb(new Error('请输入合法的手机号！'))

    }

    return{
        //获取用户列表的参数的对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userlist: [],
      total: 0,
      setRoleDialogVisible: false,
      userInfo: {},
      rolesList: [],
      selectedRoleId: '',


      //控制添加用户对话框的显示与隐藏
      dialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''

      },

      //添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true , message: '请输入用户名' , trigger: 'blur'},
          { min: 3 , max: 10 , message: '用户名的长度在3~10位' , trigger: 'blur' }
        ],

        password: [
          { required: true , message: '请输入密码' , trigger: 'blur'},
          { min: 6 , max: 15 , message: '用户名的长度在6~15位' , trigger: 'blur' }
        ],

        email: [
          { required: true , message: '请输入邮箱' , trigger: 'blur'},
          {validator: checkEmail , trigger: 'blur'}
        ],

        mobile: [
          { required: true , message: '请输入手机号' , trigger: 'blur'},
          {validator: checkMobile , trigger: 'blur'}
        ],

      },

      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户信息对象
      editForm: {},

      //修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true , message: '请输入邮箱' , trigger: 'blur'},
          {validator: checkEmail , trigger: 'blur'}
        ],
        mobile: [
          { required: true , message: '请输入手机号' , trigger: 'blur'},
          {validator: checkMobile , trigger: 'blur'}
        ]
      }

    }
  },
  created() {
    this.getUserList();
  },

  methods:  {
   async getUserList(){
     const {data:res} =  await this.$http.get('users',{
       params: this.queryInfo })
     if ( res.meta.status !== 200){
       return this.$message.error('获取用户列表失败!')
     }
     this.userlist = res.data.users
     this.total =res.data.total
    },

    //监听pagesizi改变的事件
    handleSizeChange(newSize){
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },

    handleCurrentChange(newPage) {
      this.queryInfo.pagenum  = newPage
      this.getUserList()
    },

    //监听switch开关的状态
    async userChange(userinfo){
     const {data:res} = await this.$http.put(`users/${userinfo.id}/state/
     ${userinfo.mg_state}`)
      if (res.meta.status !== 200){
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更护用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },

    //监听添加用户对话框的关闭事件
    addDialogClosed(){
       this.$refs.addFormRef.resetFields()
    },

    //点击按钮，添加新用户
    addUser(){
      this.$refs.addFormRef.validate( async (valid)=>{
         if (!valid) return
        //可以发起添加用户的网络请求
         const {data:res} = await this.$http.post('users' , this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }
         this.$message.success('添加用户成功！')
         this.dialogVisible = false
         this.getUserList()
      })
    },

      async showEditDialog(id){
      this.editDialogVisible = true
        const {data : res } = await this.$http.get('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('查询用户信息失败')
        }
        this.editForm = res.data
    },

    editDialogClosed(){
      this.$refs.editFormRef.resetFields()
    },

    //提交修改用户信息
    editUserInfo(){
      this.$refs.editFormRef.validate(async (valid)=>{
        if (!valid) return
        //发起修改用户信息的数据请求
          const {data:res} = await this.$http.put('users/' + this.editForm.id ,
            {email:this.editForm.email ,
                  mobile: this.editForm.mobile})

        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！ ')
        }
        //关闭对话框
        this.editDialogVisible = false;
        //刷新数据列表
        this.getUserList()
        //提示修改成功
        this.$message.success('更新用户信息成功！')
      })

    },

    //根据id删除对应的用户信息
    async removeUserById(id){
        //弹框提示
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const {data:res} = await  this.$http.delete('users/' + id)
      if ( res.meta.status !== 200){
        return  this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    },

    async setRole(userInfo) {
     this.userInfo= userInfo
      //在展示对话框之前，获取所有角色的列表
      const {data:res} = await this.$http.get('roles')
      if (res.meta.status !== 200){
        return  this.$message.error('获取角色列表失败！')
      }
      this.rolesList = res.data
     this.setRoleDialogVisible = true
    },

    //点击按钮，分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }
      const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,
          {rid:this.selectedRoleId})
      if (res.meta.status !== 200) {
        return  this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },


    //监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    },
  }
}
</script>

<style lang="less" scoped>

</style>
